document.write( "Question 1154900: A school chorus concert is held in the school auditorium which has 120 seats. Student tickets cost $3 and adult cost $5 each. The schools goal is to sell $400 worth of tickets for the concert. Write a system of linear inequalities
\n" ); document.write( "that can be used to find the possible of combinations of student tickets,x, and adult tickets,y, that would satisfy the schools goal.
\n" ); document.write( "a. graph the solution.
\n" ); document.write( "b. Will selling 40 student and 70 adult tickets meet the schools goals? explain
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Algebra.Com's Answer #777444 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
(1) \"+3x+%2B+5y+=+400+\"
\n" ); document.write( "(2) \"+x+%2B+y+=+120+\"
\n" ); document.write( "Here's the plot of the solution:
\n" ); document.write( "\"+graph%28+400%2C+400%2C+-40%2C+200%2C+-50%2C+200%2C+120+-+x%2C+%28-3%2F5%29%2Ax+%2B+80+%29+\"
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\n" ); document.write( "\"+x+=+40+\"
\n" ); document.write( "\"+y+=+70+\"
\n" ); document.write( "(1) \"+3%2A40+%2B+5%2A70+=+120+%2B+350+\"
\n" ); document.write( "(1) \"+120+%2B+350+=+470+\"
\n" ); document.write( "Yes, their goal would be met
\n" ); document.write( "There would be 10 empty seats, but they would
\n" ); document.write( "make the goal.
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\n" ); document.write( "check:
\n" ); document.write( "Multiply both sides of (2) by \"+3+\" and
\n" ); document.write( "subtract (1) from (2)
\n" ); document.write( "(1) \"+3x+%2B+5y+=+400+\"
\n" ); document.write( "(2) \"+-3x+-+3y+=+-360+\"
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\n" ); document.write( "\"+2y+=+40+\"
\n" ); document.write( "\"+y+=+20+\"
\n" ); document.write( "and
\n" ); document.write( "(2) \"+x+%2B+20+=+120+\"
\n" ); document.write( "(2) \"+x+=+100+\"
\n" ); document.write( "Looks like a match to the plot
\n" ); document.write( "-------------------------------\r
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